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Detail of the machine gun charging cable.

In the cramped quarters of the ball turret, the ball turret gunner could not
directly cock the gun; instead, the gunner pulled the red handle connected to the forward end of this
cable. The cable was routed through pulleys, one at the forward end and one at
the aft end of the turret, and attached to
the machine gun, in order to charge (cock) the weapon.